Out list of clients includes Penguin, Radio Times (the BBC's magazine) and Forbidden Books. Here's a more complete list:

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Art of Living
Ash Green School
CND
Connextions
Creative Partnerships
The Crew
DC/Vertigo
DC/Helix
Dark Horse Entertainment
Desperado Publishing
Die So Fluid
Fighters Monthly
Forbidden Books
Forest of Arden (Marriott Hotels)
Forever More
Hampshire Arts
Herbert Art Gallery
Home Office
Iron Magazine
Labyrinth Theatre Co
National Children's Bureau
Paradox Press
Penguin Books
Radio Times
Red Mullet Productions
Renegade Press
Tabeisa
Tekno Comics
Victor Gollancz
Warrior Publications
YAM (Youth Animation & Media)
Wizards of the Coast